Statistical Analysis and Estimated Tennis Ratings to the 10,000th of a Point
Match History (Recent) View Advanced Player Stats
William Chamberlin (San Rafael, CA)
Male 		4.5 S
12/13/2024
Estimated Dynamic Rating 3.9751
5/15/2025
Projected Year End Rating ------
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4.5 Rating Meter
Rating Meter
4.0001 - 4.5000
Recent Match History Current Rating History
Recent History
League/Level Total
Matches		 Win Loss Tie WPct Total
Sets		 Win Loss WPct Total
Games		 Win Loss WPct Defaults
Adult 18+ 4.5 2 0 2 0 0.0 6 2 4 33.3 36 16 20 44.4 0
Adult 40+ 0.0 2 0 2 0 0.0 4 0 4 0.0 30 6 24 20.0 0
Combo 8.5 7 2 5 0 28.6 16 5 11 31.3 130 50 80 38.5 0
Mixed 18+ 8.0 2 2 0 0 100.0 5 4 1 80.0 35 22 13 62.9 0
Mixed 18+ 9.0 6 3 3 0 50.0 15 7 8 46.7 126 58 68 46.0 0
Mixed 40+ 8.0 3 0 3 0 0.0 7 1 6 14.3 63 25 38 39.7 0
Total 22 7 15 0 31.8 53 19 34 35.8 420 177 243 42.1 0
Match Date League Team Court Partner Opponent(s) W/L Result Match Rating
05/07/2025 Adult 18+
4.5		 MARIN TC 18AM4.5A
No California		 D3 Michael Lustenberger
(3.90) 		James Milligan
(4.20)
Eric Issadore
(4.04) 		L 6-2
2-6
1-0		 4.10 3.98
05/03/2025 Adult 18+
4.5		 MARIN TC 18AM4.5A
No California		 D1 Chris Trepte
(4.26) 		Jonathan Golden
(3.91)
Andre Mancl
(4.23) 		L 6-2
4-6
1-0		 3.94 3.94
03/29/2025 Mixed 18+
9.0
League		 RAFAEL RC 18MX9.0A
No California		 D3 Emily Parento
(4.14) 		Jennifer Rogers
(4.55)
Michael Lustenberger
(3.89) 		L 7-6
4-6
1-0		 4.12 4.03
03/06/2025 Mixed 18+
9.0		 RAFAEL RC 18MX9.0A
No California		 D1 Alison St Sure
(4.40) 		Robin Gluck
(4.45)
Jason Tavano
(3.66) 		W 7-6
2-6
1-0		 3.79 3.94
03/03/2025 Mixed 18+
9.0		 RAFAEL RC 18MX9.0A
No California		 D2 Angela Downs
(4.06) 		Kushal Chakrabarty
(4.07)
Kiran F Narsinh
(4.06) 		L 6-4
6-2		 3.85 3.97
03/02/2025 Mixed 18+
8.0		 RAFAEL RC 18MX8.0A
No California		 D3 Kendal Burrell
(3.44) 		Christopher Povio
(3.15)
Lauren Povio
(3.62) 		W 6-1
6-1		 4.06 4.03
03/01/2025 Adult 40+ FLYTE RC 40AM4.5A
No California		 D2 Jason Holmes
(4.01) 		Michael Ellis
(4.12)
Robert Blechman
(4.26) 		L 6-1
6-2		 3.70 3.94
02/23/2025 Mixed 18+
9.0		 RAFAEL RC 18MX9.0A
No California		 D2 Elizabeth Notti
(4.09) 		Michelle Gurman
(4.53)
Wallace Tice
(3.80) 		W 6-4
7-6		 S 4.02
02/17/2025 Adult 40+ FLYTE RC 40AM4.5A
No California		 D2 Jason Holmes
(4.01) 		James Brandt
(4.42)
Michael Damiani
(4.43) 		L 6-1
6-2		 4.16 4.16
02/16/2025 Mixed 18+
8.0		 RAFAEL RC 18MX8.0A
No California		 D1 Ashley Hellyer
(3.10) 		Jason Holmes
(4.01)
Jamie Papadimos
(3.21) 		W 7-5
2-6
1-0		 4.02 4.02
02/15/2025 Mixed 18+
9.0		 RAFAEL RC 18MX9.0A
No California		 D2 Elizabeth Notti
(4.09) 		Brooke Juhl
(4.40)
Jason Holmes
(4.01) 		W 6-4
4-6
1-0		 4.37 4.02
01/12/2025 Mixed 18+
9.0		 RAFAEL RC 18MX9.0A
No California		 D3 Erin Chamberlin
(4.01) 		Jennifer Rogers
(4.51)
Michael Graziano
(3.60) 		L 6-4
6-2		 3.71 3.71
11/03/2024 Combo
8.5		 RAFAEL RC CM8.5A
No California		 D3 Josh Quaas
(3.68) 		Thomas Schmidt
(4.14)
Joe Gulash
(3.88) 		L 6-3
7-5		 4.08 -----
10/20/2024 Combo
8.5		 RAFAEL RC CM8.5A
No California		 D3 Bob Fields
(3.85) 		Mark Shaw
(3.98)
Larry Smith
(4.18) 		L 6-7
6-4
1-0		 4.21 -----
10/13/2024 Combo
8.5		 RAFAEL RC CM8.5A
No California		 D2 Paul McGeehan
(3.64) 		Tom Kincaid
(4.35)
Sachin Monga
(3.99) 		L 6-1
6-0		 3.83 -----
09/29/2024 Combo
8.5		 RAFAEL RC CM8.5A
No California		 D2 Josh Quaas
(3.68) 		Jimmy Hyman
(-----)
Robert Cahill
(3.90) 		L 6-2
6-2		 3.18 -----
09/22/2024 Combo
8.5		 RAFAEL RC CM8.5A
No California		 D2 Tommy Hellyer
(3.64) 		Cory Fulchiron
(4.24)
Luis Nanez
(3.53) 		W 6-4
6-3		 4.42 -----
09/15/2024 Combo
8.5		 RAFAEL RC CM8.5A
No California		 D2 Tommy Hellyer
(3.64) 		Joe Gulash
(3.88)
Chris Neal
(4.18) 		W 7-5
1-6
1-0		 4.31 -----
09/04/2024 Combo
8.5		 RAFAEL RC CM8.5A
No California		 D3 Tony Gambardella
(3.87) 		Scott Harrison
(4.21)
Kushal Chakrabarty
(3.98) 		L 6-1
6-4		 3.83 -----
09/01/2024 Tournament
NM4.5d		 Hal Wagner Memorial Doubles Open 2024 R1 Mike Downs
(-----) 		Cory Fulchiron
(4.24)
Max Luedecke
(4.04) 		L 6-2
6-3		 S -----
08/31/2024 Tournament
NM4.5d		 Hal Wagner Memorial Doubles Open 2024 R3 Mike Downs
(-----) 		Steve Schreck
(4.24)
Michael Damiani
(4.43) 		L 6-3
6-2		 S -----
08/15/2024 Mixed 40+
8.0		 RAFAEL RC 40MX8.0A
No California		 D2 Kendal Burrell
(3.46) 		Laura Spence
(3.82)
Joe Gulash
(3.96) 		L 6-3
6-4		 4.06 4.11
08/12/2024 Mixed 40+
8.0		 RAFAEL RC 40MX8.0A
No California		 D1 Amy Atherton
(3.41) 		Ben Portnoy
(3.91)
Michelle Endres
(3.54) 		L 6-3
7-5		 3.96 4.09
07/28/2024 Mixed 40+
8.0		 RAFAEL RC 40MX8.0A
No California		 D1 Amy Atherton
(3.39) 		Jonathan Thompson
(4.03)
Catherine Diego
(3.76) 		L 6-7
6-3
1-0		 4.19 4.14
05/07/2025 D3 Adult 18+
4.5
MARIN TC 18AM4.5A
No California		 L MILL VALLEY 18AM4.5A
No California
Michael Lustenberger (3.90) 6-2
2-6
1-0		 James Milligan (4.20)
Eric Issadore (4.04)
Match: 4.10 Rating: 3.98
05/03/2025 D1 Adult 18+
4.5
MARIN TC 18AM4.5A
No California		 L TIBURON PEN C 18AM4.5A
No California
Chris Trepte (4.26) 6-2
4-6
1-0		 Jonathan Golden (3.91)
Andre Mancl (4.23)
Match: 3.94 Rating: 3.94
03/29/2025 D3 Mixed 18+
9.0
League
RAFAEL RC 18MX9.0A
No California		 L MARIN TC 18MX9.0A
No California
Emily Parento (4.14) 7-6
4-6
1-0		 Jennifer Rogers (4.55)
Michael Lustenberger (3.89)
Match: 4.12 Rating: 4.03
03/06/2025 D1 Mixed 18+
9.0
RAFAEL RC 18MX9.0A
No California		 W MT TAM RC 18MX9.0A
No California
Alison St Sure (4.40) 7-6
2-6
1-0		 Robin Gluck (4.45)
Jason Tavano (3.66)
Match: 3.79 Rating: 3.94
03/03/2025 D2 Mixed 18+
9.0
RAFAEL RC 18MX9.0A
No California		 L MARIN TC 18MX9.0A
No California
Angela Downs (4.06) 6-4
6-2		 Kushal Chakrabarty (4.07)
Kiran F Narsinh (4.06)
Match: 3.85 Rating: 3.97
03/02/2025 D3 Mixed 18+
8.0
RAFAEL RC 18MX8.0A
No California		 W TIBURON PEN C 18MX8.0B
No California
Kendal Burrell (3.44) 6-1
6-1		 Christopher Povio (3.15)
Lauren Povio (3.62)
Match: 4.06 Rating: 4.03
03/01/2025 D2 Adult 40+
FLYTE RC 40AM4.5A
No California		 L MILL VALLEY 40AM4.5A
No California
Jason Holmes (4.01) 6-1
6-2		 Michael Ellis (4.12)
Robert Blechman (4.26)
Match: 3.70 Rating: 3.94
02/23/2025 D2 Mixed 18+
9.0
RAFAEL RC 18MX9.0A
No California		 W MT TAM RC 18MX9.0A
No California
Elizabeth Notti (4.09) 6-4
7-6		 Michelle Gurman (4.53)
Wallace Tice (3.80)
Match: S Rating: 4.02
02/17/2025 D2 Adult 40+
FLYTE RC 40AM4.5A
No California		 L MARIN TC 40AM4.5A
No California
Jason Holmes (4.01) 6-1
6-2		 James Brandt (4.42)
Michael Damiani (4.43)
Match: 4.16 Rating: 4.16
02/16/2025 D1 Mixed 18+
8.0
RAFAEL RC 18MX8.0A
No California		 W MARIN TC 18MX8.0B
No California
Ashley Hellyer (3.10) 7-5
2-6
1-0		 Jason Holmes (4.01)
Jamie Papadimos (3.21)
Match: 4.02 Rating: 4.02
02/15/2025 D2 Mixed 18+
9.0
RAFAEL RC 18MX9.0A
No California		 W MARIN TC 18MX9.0A
No California
Elizabeth Notti (4.09) 6-4
4-6
1-0		 Brooke Juhl (4.40)
Jason Holmes (4.01)
Match: 4.37 Rating: 4.02
01/12/2025 D3 Mixed 18+
9.0
RAFAEL RC 18MX9.0A
No California		 L MARIN TC 18MX9.0A
No California
Erin Chamberlin (4.01) 6-4
6-2		 Jennifer Rogers (4.51)
Michael Graziano (3.60)
Match: 3.71 Rating: 3.71
11/03/2024 D3 Combo
8.5
RAFAEL RC CM8.5A
No California		 L MARINWOOD COMM CTR CM8.5A
No California
Josh Quaas (3.68) 6-3
7-5		 Thomas Schmidt (4.14)
Joe Gulash (3.88)
Match: 4.08 Rating: -----
10/20/2024 D3 Combo
8.5
RAFAEL RC CM8.5A
No California		 L MILL VALLEY CM8.5A
No California
Bob Fields (3.85) 6-7
6-4
1-0		 Mark Shaw (3.98)
Larry Smith (4.18)
Match: 4.21 Rating: -----
10/13/2024 D2 Combo
8.5
RAFAEL RC CM8.5A
No California		 L ROLLING HILLS CM8.5A
No California
Paul McGeehan (3.64) 6-1
6-0		 Tom Kincaid (4.35)
Sachin Monga (3.99)
Match: 3.83 Rating: -----
09/29/2024 D2 Combo
8.5
RAFAEL RC CM8.5A
No California		 L LAGUNITAS CC CM8.5A
No California
Josh Quaas (3.68) 6-2
6-2		 Jimmy Hyman (-----)
Robert Cahill (3.90)
Match: 3.18 Rating: -----
09/22/2024 D2 Combo
8.5
RAFAEL RC CM8.5A
No California		 W ROHNERT PK TC/MAGNOLIA/M PK CM8.5A
No California
Tommy Hellyer (3.64) 6-4
6-3		 Cory Fulchiron (4.24)
Luis Nanez (3.53)
Match: 4.42 Rating: -----
09/15/2024 D2 Combo
8.5
RAFAEL RC CM8.5A
No California		 W MARINWOOD COMM CTR CM8.5A
No California
Tommy Hellyer (3.64) 7-5
1-6
1-0		 Joe Gulash (3.88)
Chris Neal (4.18)
Match: 4.31 Rating: -----
09/04/2024 D3 Combo
8.5
RAFAEL RC CM8.5A
No California		 L MARIN TC CM8.5A
No California
Tony Gambardella (3.87) 6-1
6-4		 Scott Harrison (4.21)
Kushal Chakrabarty (3.98)
Match: 3.83 Rating: -----
Hal Wagner Memorial Doubles Open 2024
09/01/2024 R1 Tournament
NM4.5d
L
Mike Downs (-----) 6-2
6-3		 Cory Fulchiron (4.24)
Max Luedecke (4.04)
Match: S Rating: -----
Hal Wagner Memorial Doubles Open 2024
08/31/2024 R3 Tournament
NM4.5d
L
Mike Downs (-----) 6-3
6-2		 Steve Schreck (4.24)
Michael Damiani (4.43)
Match: S Rating: -----
08/15/2024 D2 Mixed 40+
8.0
RAFAEL RC 40MX8.0A
No California		 L SCOTT VALLEY 40MX8.0A
No California
Kendal Burrell (3.46) 6-3
6-4		 Laura Spence (3.82)
Joe Gulash (3.96)
Match: 4.06 Rating: 4.11
08/12/2024 D1 Mixed 40+
8.0
RAFAEL RC 40MX8.0A
No California		 L BELVEDERE TC 40MX8.0A
No California
Amy Atherton (3.41) 6-3
7-5		 Ben Portnoy (3.91)
Michelle Endres (3.54)
Match: 3.96 Rating: 4.09
07/28/2024 D1 Mixed 40+
8.0
RAFAEL RC 40MX8.0A
No California		 L ROLLING HILLS 40MX8.0A
No California
Amy Atherton (3.39) 6-7
6-3
1-0		 Jonathan Thompson (4.03)
Catherine Diego (3.76)
Match: 4.19 Rating: 4.14
Glossary
Match Player rating for individual match.
Rating Dynamic rating after completed match.
NC Match not yet calculated into rating.
S Self rated or unrated player involved in match so no match rating calculated for current player.
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